7635640007 has 2 divisors, whose sum is σ = 7635640008. Its totient is φ = 7635640006.

The previous prime is 7635640003. The next prime is 7635640021. The reversal of 7635640007 is 7000465367.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7635640007 - 2² = 7635640003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7635640003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3817820003 + 3817820004.

It is an arithmetic number, because the mean of its divisors is an integer number (3817820004).

Almost surely, 2^7635640007 is an apocalyptic number.

7635640007 is a deficient number, since it is larger than the sum of its proper divisors (1).

7635640007 is an equidigital number, since it uses as much as digits as its factorization.

7635640007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 7635640007 is about 87382.1492468570. The cubic root of 7635640007 is about 1969.1636711295.

The spelling of 7635640007 in words is "seven billion, six hundred thirty-five million, six hundred forty thousand, seven".